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block: add blk_run_queue_async

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Instead of overloading __blk_run_queue to force an offload to kblockd
add a new blk_run_queue_async helper to do it explicitly.  I've kept
the blk_queue_stopped check for now, but I suspect it's not needed
as the check we do when the workqueue items runs should be enough.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Christoph Hellwig
2011-04-18 11:41:33 +02:00
committed by Jens Axboe
parent 4521cc4ed5
commit 24ecfbe27f
9 changed files with 36 additions and 23 deletions
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4
block/blk-flush.c
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@@ -218,7 +218,7 @@ static void flush_end_io(struct request *flush_rq, int error)
* request_fn may confuse the driver. Always use kblockd.
*/
if (queued)
__blk_run_queue(q, true);
blk_run_queue_async(q);
}
/**
@@ -274,7 +274,7 @@ static void flush_data_end_io(struct request *rq, int error)
* the comment in flush_end_io().
*/
if (blk_flush_complete_seq(rq, REQ_FSEQ_DATA, error))
__blk_run_queue(q, true);
blk_run_queue_async(q);
}
/**